Table 3 Research progress in brain electrical impedance tomography
From: Advances in electrical impedance tomography-based brain imaging
Disease | Research group | Method | Research results |
|---|---|---|---|
Epilepsy | Holder D | EIT with subdural electrodes | Localization of epileptic foci [49] |
Combining EEG telemetry and EIT data | EIT detected and localized different physiological changes during interictal and ictal activity [47] Changes in EIT were consistent with electrogram activity during seizures [51] | ||
Non-penetrating surface electrodes | Cortical EIT epilepsy imaging [55] | ||
Deeper neural activity Imaging, penetration depth ≤ 2.5 mm below the cortex [56] | |||
Hippocampus imaging, penetration depth ≥ 3 mm below the cortex [57] Optimization of cortical EIT epilepsy imaging [58] | |||
Dong X | Nonlinear dynamic methods | ||
Responsive electrical stimulation system | Epilepsy prediction and seizure suppression [63] | ||
EIT | Real-time imaging of epileptic seizures [64] | ||
Stroke | Holder D | MFEIT | Imaging and differentiation of hemorrhagic and ischemic stroke [69] |
Jacobian matrix | Improved imaging quality [74] | ||
Analysis of MFEIT, EEG, CT, and MRI data | Basis of future research into stroke classification [75] | ||
Dong X | MFEIT | ||
Impedance spectroscopy of normal brain tissue and hemorrhagic and ischemic stroke injury [86] | |||
Differentiation of normal, ischemic, and hemorrhagic brain tissue types based on impedance spectroscopy [87] | |||
Twist drill drainage for subdural hematoma | Intraoperative real-time monitoring and measurement of intracranial hemorrhage [76] | ||
Brain injuries and brain edema | Dong X | EIT | Real-time and noninvasive monitoring of local brain edema [93] |
Dynamic EIT | Evaluation and trial of performance of several different EIT algorithms in continuous monitoring of brain injury [94, 95] | ||
1260 Impedance/Gain-Phase Analyzer | Measurement of electrical impedance at different stages in a rat model of brain edema after ischemic brain injury [96] | ||
Real-time monitoring and differentiation of brain edema [14] | |||
16-electrode EIT system | Changes in brain water content associated with cerebral edema and monitoring of intracranial pressure and brain impedance imaging [14] | ||
Brain abscess | Kim HJ | MREIT | Comparative information on new brain abscess lesions [101] |
Characterization of time course changes before and after brain abscess induction [102] | |||
Brain neoplasms | Farnarier P | Stereoimpedoencephalography (SIEG) | Relationship between brain tumor tissue impedance and normal tissue impedance [103] |
Bullard DE | Monopolar and bipolar impedance monitoring | Combination of changes in brain impedance characteristics with corresponding CT density [104] | |
Kim HJ Muftuler LT | MREIT | Feasibility of MREIT conductivity imaging for brain tumor detection [105, 106] |